Improvement in plows



,2 Sh eIs- S H eet I. H. B. HAKES. Improvement in Plows.

'Pate-nted' Sep. 24, 1872.

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Improvement in Plows. NOL 131,679. Patented Sep.24,1872.

l T V E 1:: 'r

UNITED SATE HENRY B. HAKES, OF WORCESTER, IVIASSAGHUSETTS.

IMPROVEMENT IN FLOWS.

To all whom it mag concern:

Be it known that I, HENRY B. HAKES, of the city and county of Worcesterand Oommonwealth of Massachusetts, have invented certain new and usefulImprovements in SViVFfln-PIOWS} and I hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawing which forms a part of this specification, inwhich- Figure 1 represents a perspective view of my improvedswivel-plow; Fig. 2 represents a bottom view, and Fig. 3 represents aside view of the same.

This invention relates to certain improvements in the construction ofswivel-plows whereby the plow is caused to run to land, and is alsorendered more efficient and satis; factory in its operation of turningthe furrowslice and pulverizing the soil. The invention consists in apeculiarly constructed bed-piece, and also in the peculiar form of themoldboard, as hereinafter described.

In the drawing, the parts marked A represent the beam. B indicates thestandards 5 G, the bed D, the mold-board; E, the point; F, the handles;and G, the hook for securing the mold-board in position.- These parts,with the exception of the mold-board D and bed 0, may be constructed andarranged substantially in the ordinary manner. The bed 0 is formed ofabout the usual width at the forward end a, (see Fig. 2,) where it ispivotedto the frog 1), while the rear end, 0, is

made much narrower, its width being gradually and uniformly tapered fromits front to its rear end. The inclination of the sides of the bed 0 andthe sides of the point E cor respond, so that the land-side H forms adirect plane surface from the point E to the heel 0 of the bed, with theexception of a slightly increased dip at the extremity of the point,which is added to compensate for the more rapid wearing away of themetal at the point. The direction of cut of the plow, indicated by theline I, corresponds, of course, with the land-side H consequently, withthe bed constructed as herein shown and described, the line of cut I isvaried from the line of draft, which is indicated by the line K, and isin a vertical plane passing through the axis of the beam to an extentequal to the variation between the side and axis of the bed 0, and theplow is thereby caused to run to land to a corresponding extent, whetherthe moldboard is set to turn the furrow at the right or left hand sideof the beam A, the direction of variation in relation to the line ofdraft being changed from right to left, and vice versa, with the changein position of the mold-board, and being equal at both sides, from thefact that the bed is tapered at both sides.

By this construction I obtain a clean and straight line from thepoint tothe heel along the land-side of the plow, while the downward inclinationor dip of the point is just sufficient to produce the best result; whilethe swiveling or changing the plow from one side to the other causes noderangement of the proper relative positions of the parts, but simplyreverses them from right to left, and vice versa.

The mold-board D I make of the peculiar form illustrated, the forwardend at f being formed considerably convex, as presented to under surfaceof the furrow-slice, while at the sides h h it is curved downward with aquick curve, and the edge formed so as to leave a sufficient space at ifor the inner edgeof the furrow-slice to turn and pass under themoldboard without being pressed or carried outward. The rear end of themold-board is extended in the form of a fluke, K, which projects wellover the furrow-slice and rolls over its outer edge, while the surfaceof the moldboard from the positions I to 7c is as presented to thefurrow-slice concave.

The result produced by this form of moldboard is, that the furrow-sliceis subjected to a series of undulations or bending motions, bothlongitudinally and laterally, as well as diagonally, it being firstraised by the point on an under diagonal curve, then arched or bentlaterally over the convex portion f, after which it is bent upwardlongitudinally while passing the portion Z, and beyond which it iscurved under laterally as it turns over and passes under the edges ofthe mold-board at m, while the rear fluke 7o throws over the outer edgeand bends the slice downward longitudinally and diagonally, thusbreaking up and pulverizing the soil in a most effectual manner, andleaving it in a light and mellow condition.

Having described my improvements in swivel-plows, what I claim thereinas new and of my invention, and desire to secure by Letters Patent, is-

1. The combination, with the beam, moldboard, and point, in aswivel-plow, of a bed,

O, tapered from front to rear, substantially as and for the purposes setforth.

2. The mold-board D having the forward convexity at f, therapidly-receding curved sides h h hollowed out at 'i, and theoutwardly-curved flukes k 70, substantially as shown and described, andfor the purpose set forth.

HENRY B.- HAKES. Witnesses:

CHAS. H. BURLEIGH, THOS. H. DODGE.

